Oil gauge



Jan; 29

S. W.. FINCH OIL GAUGE szmze #4 2, 206% Filed Ma h 1'7,

Patented Jan.29,1924. p 1,481,835

warren stares MaratMm STANLEY If. FINCIL OF WASHINGTON, DISTRICT OF COLUIEBIA.

on GAUGE.

Application filedMarch 17, 1923. Serial 110,625,887.

T all whom it may concern: no oil escapes from the cock, which at such Be it known that I, STANLEY W. Frnoi timesyis closed. Again the gauge may be a citizen of the United States, residing at easily attached or removed and without Vashington. District of Columbia, have insoiling ones hands. I 5 vented certain new anduseful Improvements Various forms of the invention are illusin Oil Gauges, of. which the followingv is trated in the annexed drawings, wherein, a specification. Fig. 1 is a side elevation of a portion This invention pertains to gauges, and of a Ford engine showingthe gauge apmore specifically, to a gauge adapted to plied to the lower cock; I be used in connection with internal com- Fig. 2 an enlarged detail seotionalnview bustion engines wherein a sump is employed. thereof; and

In certainautomobiles, such asthe Ford, Figs. 3 to .6 inclusive sectional views pet-cocks are employed to determine the showing various lllOdlfiGfitlOnsOr embodilevel of be 011 1n the sump, which, as is ments of the invention. 1 15 well understood by those skilled in the art. Referring first to Figs. 1 and 2, 1 denotes must be kept within certain limits in order the engine casing and 2 the sump. The that the machine may be effectively operated. upper pet-cock is denoted by '3 andthe lower The present invention has for its object pet-cock is denoted by 4. Secured upon .the production of a simple and effective the outer end of said lower ipet-cock is 20 sightgauge which maybe attached to the a block or body .5, formed otsuitable malower pet-cock of the two pet-cocks found terial, such as oil resisting rubber. cork upon the Ford machine. As will be unor the like, having a chamber 6 formed derstood by users of the Ford car, it. is therein which opens at the inner end or necessary to manipulate the pet-cocks to that end which lies next adjacent the mouth determine the oil level, the upper one beof the cock. The block or body 5 may be ing opened when the oil is being poured forced over the enlarged end of .thepetin to determine by the passage of oil therecock 4 and held in position by the gripping in when a sufficient height or depth of oil action of the body. Extending into the has been reached. The lower pet-cock is chamber 6 is an opening in which there 30 opened at times to determine that the oil is inserted a transparent tube 7, preferably has not dropped below a given or predeformed of glass. The block or body 5 te-rmined level. is also provided at its lower side with a The manipulation of these pet-cocks is restricted opening or passage 8,, which is awkward and unsatisfactory in use, because left open at all times. The upperend of 35 to determine the height of the oil, both the gauge tube 7 is likewise open, and if pet-cocks must be opened and even .then desired a rubber ring or sleeve 9 may be only a rough estimate can be made of the. placed thereon so as to prevent-any rattle depth o-tthe oil in the sump. The present should the tube contact the engine housing invention is designed to produce a simple 1 or the upper pet-cock 3 while the machine and. effective gauge which may be attached isrunning to the lower pet-cock without the removal In operation, assuming it be desired to of said cook or change in its structure. It, fill the sump. and to determine the height ..moreover, does away with the necessity of of oil poured in, or. to determine the height opening the upper cock to determine the of the oil at any time, it is onlynecessary 4' exact height of the .oil at the time sump is to open the pet-cock 4. If the oil is above being filled. the inner end of the cock -it..will run out Again, the structure is such that in attherefrom into the chamber 6 and up into .taching the gauge, or in removing the same,- the tube 7. At the same time a. small amount of oil will drop slowly from the restricted opening 8, but inasmuch as the calibre of the tube is relatively. small and the chamber 6 is likewise small in volume, the amount of oil lost is negligible.

Should the operator fail to close the cock 4, the oil will continueto drop from the opening 8 and thus put him on notice that-the cock is still open.

In Fig. 3, instead of employing a restricted opening formed in the block or body 5, as in the construction'jnst described, I employ. a block or body 10, adapted to be snapped on to the enlarged end of the pet-cock 4, said body having a chamber 11,

and likewise formed with an opening 12 which extends through the body from side to side and is in communication with the chamber 11. Into the opening 12 there is inserteda glass tube 13, having a lateral port or opening 14, which when the tube is positioned, communicates with the chamber 11. The lower end of the tube is drawn down, as at 15, forming 'a restricted outlet or opening 16, which is equivalent to the restricted opening 8. I

In Fig. 4: the block or coupling element is denoted by 17, and is secured to the petcock in the manner above set forth. In this instance the block is provided with a longitudinal bore or opening in line with the outlet of the pet-cock and into the outer end of the bore is inserted a laterally extending branch or arm 18 of a sight-tube 19, the lower end of which is tapered, as iit 20, forming a restricted opening or outet 2 i In Fig. 5.1 have disclosed a construction which is snbstantialy the same as that in Fig. 1, except for the fact that the inner end of the laterally extending branch 18 of the sight-gauge tube is provided with an enlargement 22 which functions with the coupling element 23 which is snapped over the outer end or mouth of the pet-cock.

In Fig. 6 the same form of gauge tube as shown in Fig. 5 is employed. The tube is secured to the pet-cock. the outer end of which latter is externally threaded, by acoupling sleeve 24. A suitable packing. as 25, and a gasket or washer 26, will be employed to eifect a tight union between the patsandto prevent breakage of the gauge tu e.

i In referring to the passage 8. Figure 2,

and to. the passages 16 and 21, Figs. 3 and 4,.respectirebJ, as being restricted openings, it is to be understood that it means an openmg or passage which is smaller than the chamber or bore, 6, Flg. 2, or smaller than the chamber 11, Fig. 3 and smaller than caused to rise in the gauge 2, rather than to flow iminterruptedly out of the drainage opening when the pet-cock 4, is opened.

The members 5 and 10. and the extensions l8 and 18 may be termed entrance chambers ,or sump of an internal combustion engine;

a pet-cock in communication with the lower portion thereof; and a. gauge communicating with the cock and adapted. when the cock is opened, to indicate the level of the oil in the sump, said gauge being provided with a restricted normally open drain passage.

2. In combination with the oil reservoir 0r sump of an internal combustion engine; a pet-cock in communication with thelower portion thereof; a chambered member secured to the pet-cock, said member being provided with a restricted drainage opening extending into the chamber said drainage opening being open at all times; and a gauge tube extending upwardly from said member and opening into the chamber therein.

3. As a new article of manufacture, an oil ga-uge for internal combustion engines, comprising a resilient body adapted tobe Secured to a pet-cock, said body being provided with a chamber and a normally open restricted drainage opening extending from said chamber; and a gauge tube mounted in the opening formed in the body.'

4;. An oil gauge comprising a transparent tube operative in an upstanding position and means for attaching the tube to th outer port of apet-cock said means being provided with a conduit adapted to connect the interior of the tube with the interior of the pet-cock, and a smaller, permanentlyopen conduit for the exit of oil from the gauge.

5. As a new article of manufacture a liquid measuring gauge comprising a transparent sight tube; atubular entrance chamber in, communication, at one end, with the interior of said sight tube; a normally sight tube adapted to drain out the contents thereof, the said orifice being of materially smaller capacity than the intake end of the entrance chamber; and means for connecting the gauge with a pet-cock through which liquid may enter the gauge from a chamber containing the liquid to be gaged.

6. As a new article of manufacture a liquid measuring gauge comprising a transparent sight tube; a member having a chamber in communication with the interior of the sight tube; a normally permanently-open restricted drain orifice in the Wall of the Walls of which are adapted to stretch over 10 p gauge adjacent the lower end of the sight the outer end of a pet-cock, a conduit tube for the eXitOl the contents thereof; and adapted to connect the interior of the tube means for connecting the gauge to a chamwith the interior of the pet-cock and a ber containing the liquid to be gage/d. smaller, permanently-open conduit for the 7 An oil gauge comprising a transparent exit of oil from the gauge. c 15 tube operative in an Lip-standing position; In testimony whereof I have signed my a resilient member to which said tube is name to this specification. attached, said member having a recess the STANLEY W. FINCH. 

